I have a monthly subsciption, and am running out of disk space. Is there any way to delete the girls I am not interested in having, to free up some space? Thanks for any help!

Yup, just click the plus sign when you hover over the card you want to delete and delete. You can download them again at any time if you want to.

Now if you mean permanently and forever removed from your collection, only Totem can do that and I'm not sure they will.

Good luck.

The best option that you have is to move your collection to another hard disk. A number of wayd to do this including cloning your exist hard disk to another hard disk or adding a disk to your existing PC.

If you are running out of space, then deleting a few cards is only going to be a tempory measure....

This is one I can sympathise with.

Make sure all the autodownloads are off in 'Advanced settings'.
Manage the amount of your collection by deleting non necessary cards using the plus sign in 'my collection'.

The tough bit is deciding what is necessary or not... I can't help with that!;)

If you have a company built system, you might find that installing a new hard drive may void your warranty so you might be better going with an external hard drive for more space. But either way the long term solution is a new hard drive...